A better title is "
New treatment improve survival rate of cancer patients". It's not a lie. If they have a few extra characters they can add the type of cancer (that is a very important detail) (perhaps the part of the body instead of the technical name), the name of the drug (it's nice to search info) or where the research was done (people love the human touch). The stage is very important, but perhaps it's too technical.
I'd like to see if it's it was tested in humans/mice/vitro, many articles with a title that says "cure" are actually articles about a promising in vitro experiment.
Also if they had a control group[1], because there are a lot of cures that are just an optimistic view of bad methodology. I think most of the times it's not on purpose, they just skip a few steps to make the research faster, but the steps are there to avoid repeating error detected in previos studies.
[1] Preregistered double blind randomized controlled clinical trials that are good enough to be published in a serious peer review journal, or it didn't happen.